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The angle of incidence of a light beam in air onto a reflecting surface is continuously variable. What is the index of refraction of the reflecting material
The polarizers are rotated, so that the second polarizer has a transmission of 43.6 degrees with respect to the first polarizer, find the intensity of the beam
A strong electromagnet produces a uniform magnetic field of 1.60 T over a cross-sectional area of 0.260 m2. What is the current induced in the coil
Two events occur in an inertial system at the same time, but 7200 km apart. What is the time difference between the two events
A spaceship is 1600 m long when it is at rest. When it is traveling at a certain constant speed its length is measured by external observers, What is the speed of the spaceship in terms of the speed
Suppose the image of an object is upright and magnified 1.69 times when the object is placed 14cm from a lens
Particle track detectors are used to measure the speed of particles if the lifetime of the particle is known. Particle X has a lifetime of 256.2 ps. What is the average speed of the particles in ter
Two 6.0 kg objects head toward each other. Object A moves with a velocity of +7.0 m/s and Object B travels with a velocity of -5.0 m/s. What are their resulting velocities if the collision is perfect
It takes sound waves of frequency 500 Hz 14.7 ms to make a round trip through a hollow pipe of length 7.5 m filled with helium. What is the speed of sound in helium
A solenoid is to have an inductance of .272 mH, a cross-sectional area of 6.15x10^-4, and a length of 33.3 cm. How many turns per unit length should it have
A sliding bar has a length of .547m and moves at 2.34m/s in a magnetic field of magnitude .204T. The resistance in the circuit is .698ohms. find the new speed of the rod
Electrons are ejected with a maximum velocity of 5.1 x 105 m/s from a metal when illuminated by photons with a wavelength of 440 nm. calculate The energy of the incident photons
A capacitor is constructed of two 5.3 m2 parallel metal plates separated by an air gap of 0.010 mm. An electric potential of 25 V is applied to the capacitor. calculate the capacitance of the struct
A fire truck emitting a siren frequency of 1500 Hz speeds by you at 20.0 m/s (~45 mph). calculate the frequency of the siren as the engine approaches
A 0.20 kg mass resting on a frictionless surface is attached to a solid wall by means of a spring with and elastic force constant k of 5.0 N/m. calculate the maximum velocity experienced by the mass
Find the flux of the Earth's magnetic field of magnitude 5x10^-5, through a square loop of area 10cm^2 for the following
In the two-slit experiment, the distance between the slits and the screen is 1.1 m and the distance between the slits is 0.040 mm. what is the distance between the adjacent bright fringes
A 78 ohm resistor is connected in series with a 275 mH inductor and a 1 micro farad capacitor. Find the effective voltage V rms across the capacitor
n LRC circuit consists of a 291 Ohm resistor, a 30 micro Farad capacitor, and a 276 mH inductor, find the phase angle between the current and the applied voltage
In a series LRC AC circuit, the resistance is 19 Ohm, the inductance is 21 mH, and the capacitance is 14 micro Farads. Calculate the max current in the circuit
Two slits with a separation of 8.5 x 10-5 m create an interference pattern on the screen 2.3 m away. what is the linear distance from the central bright fringe to the tenth dark fringe above it
A solid disk (r=0.20 m, M=0.50 kg) is suspended fro the end of an L=0.30m long rod (m=0.30 kg, cross-sectional area of 2.0 cm^2). WHAT IS THE PENDULUM'S PERIOD FOR SMALL ANGLE OSCILLATIONS
A particle of mass m is in an infinite square well of width L. determine the allowed energies for the system
Your adventurous friend Lola goes bungee jumping. She leaps from a bridge that is 100 m above a river. WHat is her height above the river at her lowest point
A mass , m=1.75 kg, is held between two springs having spring constants 30 N/m and 75 N/m respectively, Find the angular frequency, w, for small oscillations